Constantine Stratakis, MD, D(MED)SCI, PHD
Constantine Stratakis, MD, D(MED)SCI, PHD is a Clinical Genetics (M.D.) Physician in Bethesda, MD, registered under NPI 1003428947. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Bethesda, based on OpenStreetMap data collected Sep 10, 2026. Parking is available about 0.34 mi away at MLP-8. The nearest transit stop is 0.23 mi away. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Parking MLP 7 377 ft ~2 min
7 Medlars Drive, Bethesda 20892
Transit Wisconsin Av at Chelsea Ln 0.21 mi ~5 min
Transit Wisconsin Av at Chelsea Ln 0.21 mi ~5 min
Transit 0.23 mi ~5 min
Grocery Harris Teeter 0.27 mi ~6 min
4805 Battery Lane, Bethesda 20814
Mo-Su 12:00-12:00
Convenience Woodmont Market 0.29 mi ~6 min
Restaurant Woodmont Deli 0.30 mi ~7 min
8225 Woodmont Avenue
Gas station Exxon 0.31 mi ~7 min
8240 Wisconsin Avenue, Bethesda 20814
Parking Woodmont-Rugby Garage 0.31 mi ~7 min
Coffee Flaxseed Cafe & Gift Shop 0.33 mi ~7 min
Parking MLP-8 0.34 mi ~7 min
4 Convent Drive, Bethesda 20892
Restaurant The Big Greek Cafe 0.37 mi ~8 min
4806 Rugby Avenue, Bethesda 20814
Mo-Su 11:00-21:00
Restaurant Manny & Olga's Pizza 0.37 mi ~8 min
Hotel The Bethesdan Hotel 0.38 mi ~8 min
Convenience Cornucopia 0.39 mi ~8 min
Hotel The Bethesdan Hotel, Tapestry Collection by Hilton 0.39 mi ~8 min
Convenience Mini Mart 0.43 mi ~9 min
Mo-Fr 07:00-19:00; Su 10:00-18:00; Sa 10:00-19:00
Gas station Mini Mart 0.44 mi ~9 min
Grocery Trader Joe's 0.47 mi ~10 min
7900 Wisconsin Avenue, Bethesda 20814
Mo-Su 08:00-21:00
Gas station Exxon 0.48 mi ~10 min
7975 Old Georgetown Road, Bethesda 20814
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 0101049468 | VA | Clinical Genetics (M.D.) Physician primary |
This provider holds licence 0101049468 issued in VA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Clinical Genetics (M.D.) covers
A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders. NUCC Health Care Provider Taxonomy, code 207SG0201X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003428947 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 21, 2020 |
| Last updated | Aug 21, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD, D(MED)SCI, PHD |
| Practice address |
9000 ROCKVILLE PIKE Bethesda, MD 20892 (301) 496-2315 |
| Mailing address |
6506 TILDEN LN North Bethesda, MD 20852 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 2 | 8 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 2 | 7 | 9 | 8 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.